ASTROSAT CZTI

Data Quality Report

Orbit 07353

Creation date: 2024-06-27T15:18:52.487669
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G06_157T02_9000001008_07353cztM0_level2.evt modeM0/AS1G06_157T02_9000001008_07353cztM0_level2_quad_clean.evt
Size (bytes)507,179,520101,831,040
Size483.7 MB 97.1 MB
Events in quadrant A3,145,317653,650
Events in quadrant B3,343,196678,930
Events in quadrant C4,052,112665,649
Events in quadrant D4,367,644621,593

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138943
B0144882
C0167082
D0175372

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6655420.631104%
B6655660.991736%
C6655731.096920%
D66552613.921863%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 9340 6657 0 0 0.00% 0.00%
B 9340 6657 0 0 0.00% 0.00%
C 9340 6657 0 0 0.00% 0.00%
D 9340 6657 158 158 1.69% 2.37%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 0 226 7971 43.04 815 799 166.6
A 12 194 7204 38.44 815 799 166.6
A 15 239 6576 34.67 815 799 166.6
B 0 214 100520 630.22 833 814 158.2
B 12 111 15974 95.82 833 814 158.2
B 4 81 14514 86.59 833 814 158.2
C 9 68 900815 4831.35 807 812 186.3
C 13 61 6235 29.11 807 812 186.3
C 1 16 3152 12.56 807 812 186.3
D 1 52 856382 4396.48 789 765 194.6
D 2 216 202696 1037.6 789 765 194.6
D 14 34 138897 709.77 789 765 194.6

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter